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P-BLOCK GROUP ELEMENTS: The p block elements are belong to group 13 to 18.the outermost electronic configuration is ns2 np1 to ns2 np6.these are called representative elements.it possess high electron gain enthalpy or electronegativity. Properties:1)they possess high electronegativity. 2)All p-block elements are metalloids or non metalloids. 3)They also share electrons to form covalent bonds. 4)18th group elements are noble gases.it is more stable due to the presence of octet configuration in outermost configuration. D-BLOCK GROUP ELEMENTS:
D block elements are present between the s-block elements and p-block elements.the general electronic configuration is n-1)d1-10.PROPERTIES:1)they are hard and heavy metals. 2)they mostly formed coloured ions
The frequency of one of the lines in Paschen series of hydrogen atom is2.340x10 11 Hz. The quantum number n 2 which produces this transition is: (1) 6 (2) 5
Addition polymerization: It involves following three mechanisms: 1. Free radical polymerization 2. Ionic polymerization mechanism 3.
preparation of alkenes
Cis-1,3-di-tert-butylcyclohexane can exist in a chair conformation (A) in which both tert-butyl groups are equatorial. Though, in either chair conformation of trans-1,3-di-tert-bu
Q. Write electron configuration for a neutral atom of silicon? Writing Electron Configurations by means of Noble-Gas Notation Use noble-gas notation to write the electron confi
Laboratory safety During your observation of chemistry you will conduct experiments in the laboratory. When working in the lab you are accountable for the safety of yourself and o
electrolysis laws by michael faraday and how they helped him to find particle nature of electricity??
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The emission spectrum of hydrogen is found to satisfy the expression for the energy change. teiangle E (in joules) such thatTriangle E= 2.18x10(1/n 2 1 - 1/ n 2 1 ) J where n
The two electrons in K sub-shell will differ in : (1)Principal quantum number (2)Azimuthal quantum number (3)Magnetic quantum number (4)Spin quantum number Ans:Spin
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